docs(06-01): complete docker configuration plan

Tasks completed: 3/3
- Switch to adapter-node with environment prefix
- Create Docker configuration files
- Update data paths for environment variable configuration

SUMMARY: .planning/phases/06-deployment/06-01-SUMMARY.md

.planning/STATE.md

@@ -5,23 +5,23 @@
 See: .planning/PROJECT.md (updated 2026-01-29)
 
 **Core value:** Capture and find anything from any device — especially laptop. If cross-device capture with images doesn't work, nothing else matters.
-**Current focus:** Phase 5 - Search & Filter (Complete)
+**Current focus:** Phase 6 - Deployment (In Progress)
 
 ## Current Position
 
-Phase: 5 of 6 (Search & Filter)
+Phase: 6 of 6 (Deployment)
-Plan: 3 of 3 in current phase (Phase complete)
+Plan: 1 of 2 in current phase
-Status: Phase 5 complete, ready for Phase 6
+Status: In progress
-Last activity: 2026-01-31 — Completed 05-03-PLAN.md
+Last activity: 2026-02-01 — Completed 06-01-PLAN.md
 
-Progress: [██████████] 100%
+Progress: [█████████░] 94%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 16
+- Total plans completed: 17
-- Average duration: 3.5 min
+- Average duration: 3.4 min
-- Total execution time: 56 min
+- Total execution time: 58 min
 
 **By Phase:**
 
@@ -32,9 +32,10 @@ Progress: [██████████] 100%
 | 03-images | 4 | 14 min | 3.5 min |
 | 04-tags | 3 | 13 min | 4.3 min |
 | 05-search | 3 | 7 min | 2.3 min |
+| 06-deployment | 1 | 2 min | 2 min |
 
 **Recent Trend:**
-- Last 5 plans: 04-01 (2 min), 04-02 (8 min), 04-03 (3 min), 05-02 (1 min), 05-03 (4 min)
+- Last 5 plans: 04-03 (3 min), 05-01 (2 min), 05-02 (1 min), 05-03 (4 min), 06-01 (2 min)
 - Trend: Stable
 
 *Updated after each plan completion*
@@ -90,6 +91,10 @@ Recent decisions affecting current work:
 - Recent searches saved on blur with >= 2 char minimum (05-03)
 - Generic filterEntries<T> to preserve full entry type (05-03)
 - Flat list during filtering (no pinned/unpinned separation) (05-03)
+- TASKPLANER_ prefix for environment variables via adapter-node envPrefix (06-01)
+- Multi-stage Docker build for smaller production image (06-01)
+- Non-root 'nodejs' user (UID 1001) for container security (06-01)
+- Named volume taskplaner_data for persistent data (06-01)
 
 ### Pending Todos
 
@@ -101,10 +106,10 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-01-31
+Last session: 2026-02-01
-Stopped at: Completed 05-03-PLAN.md (Phase 5 complete)
+Stopped at: Completed 06-01-PLAN.md
 Resume file: None
 
 ---
 *State initialized: 2026-01-29*
-*Last updated: 2026-01-31 after 05-03 completion*
+*Last updated: 2026-02-01 after 06-01 completion*

.planning/phases/06-deployment/06-01-SUMMARY.md

@@ -0,0 +1,108 @@
+---
+phase: 06-deployment
+plan: 01
+subsystem: infra
+tags: [docker, docker-compose, adapter-node, sveltekit, alpine]
+
+# Dependency graph
+requires:
+  - phase: 01-foundation
+    provides: SQLite database configuration
+  - phase: 03-images
+    provides: Image storage paths
+provides:
+  - Docker multi-stage build configuration
+  - Production Node.js server via adapter-node
+  - docker-compose for single-command deployment
+  - Environment variable configuration for data paths
+affects: [06-02-health-endpoint]
+
+# Tech tracking
+tech-stack:
+  added: ["@sveltejs/adapter-node"]
+  patterns: ["Multi-stage Docker builds", "Non-root container user", "Environment variable prefixes"]
+
+key-files:
+  created:
+    - Dockerfile
+    - .dockerignore
+    - docker-compose.yml
+  modified:
+    - svelte.config.js
+    - src/lib/server/db/index.ts
+    - src/lib/server/images/storage.ts
+
+key-decisions:
+  - "TASKPLANER_ prefix for environment variables via adapter-node envPrefix"
+  - "Multi-stage Docker build for smaller production image"
+  - "Non-root 'nodejs' user (UID 1001) for container security"
+  - "Named volume taskplaner_data for persistent data"
+
+patterns-established:
+  - "Environment variables: Use TASKPLANER_ prefix for all app config"
+  - "Data paths: Read from TASKPLANER_DATA_DIR with ./data fallback"
+
+# Metrics
+duration: 2min
+completed: 2026-02-01
+---
+
+# Phase 6 Plan 1: Docker Configuration Summary
+
+**Multi-stage Docker build with adapter-node, non-root user, and environment variable configuration for production deployment**
+
+## Performance
+
+- **Duration:** 2 min 14 sec
+- **Started:** 2026-02-01T12:18:40Z
+- **Completed:** 2026-02-01T12:20:54Z
+- **Tasks:** 3
+- **Files modified:** 6
+
+## Accomplishments
+- Switched SvelteKit to adapter-node for production Node.js server
+- Created multi-stage Docker build with node:22-alpine base
+- Configured docker-compose with named volume for data persistence
+- Unified data path configuration via TASKPLANER_DATA_DIR environment variable
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Switch to adapter-node with environment prefix** - `3b9f434` (feat)
+2. **Task 2: Create Docker configuration files** - `5e31b69` (feat)
+3. **Task 3: Update data paths for environment variable configuration** - `457baca` (feat)
+
+## Files Created/Modified
+- `svelte.config.js` - Configured adapter-node with envPrefix: 'TASKPLANER_'
+- `Dockerfile` - Multi-stage build, non-root user, HEALTHCHECK
+- `.dockerignore` - Build context exclusions
+- `docker-compose.yml` - Single-service compose with taskplaner_data volume
+- `src/lib/server/db/index.ts` - Read DATA_DIR from environment
+- `src/lib/server/images/storage.ts` - Read DATA_DIR from environment
+
+## Decisions Made
+- Used TASKPLANER_ prefix for environment variables (matches adapter-node envPrefix)
+- Alpine-based image for smaller size (though 285MB due to sharp native dependencies)
+- Non-root nodejs user with UID 1001 for security
+- HEALTHCHECK configured for /health endpoint (to be created in Plan 02)
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+- Docker image size is 285MB instead of target <250MB. This is due to sharp native module dependencies which are necessary for image processing functionality. Acceptable tradeoff.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Docker configuration complete
+- Ready for Plan 02: Health endpoint and deployment documentation
+- HEALTHCHECK references /health endpoint which needs implementation
+
+---
+*Phase: 06-deployment*
+*Completed: 2026-02-01*